BATH FOR THE GALVANIC DEPOSITION OF GOLD-TIN ALLOY COATINGS

BATH FOR THE GALVANIC DEPOSITION OF GOLD-TIN ALLOY COATINGS

To produce electrolytic deposition of glossy gold/tin alloys there are employed baths having a pH below 3 which contain 1 to 20 g/l gold in the form of tetracyanoaurate (III), 0.1 to 10 g/l tin, an acid and a conducting salt, whereby the tin is in the form of a tin (IV)-oxalato complex.

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Bibliographische Detailangaben
Hauptverfasser: KUHN, WERNER, ZILSKE, WOLFGANG
Format: Patent
Sprache:eng ; ger
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Beschreibung
Zusammenfassung:To produce electrolytic deposition of glossy gold/tin alloys there are employed baths having a pH below 3 which contain 1 to 20 g/l gold in the form of tetracyanoaurate (III), 0.1 to 10 g/l tin, an acid and a conducting salt, whereby the tin is in the form of a tin (IV)-oxalato complex.